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工程力学  2014 

考虑空化作用的潜射航行体弹道仿真

DOI: 10.6052/j.issn.1000-4750.2013.05.0393, PP. 242-247

Keywords: 潜射,水下弹道,空化,附加径向力,仿真

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Abstract:

该文基于独立膨胀原理研究了潜射航行体的自然空泡形态及小机动条件下空泡轴线的偏移,采用细长体理论计算了航行体部分沾湿区的流体动力,建立了纵平面内潜射航行体水下运动数学模型。针对自然空化条件下潜射航行体水下航行段弹道进行了仿真分析,仿真结果表明,艇速干扰使弹道出现弯曲,艇速越大,航行体出水姿态角越大,不利于出水姿态的稳定,而空化作用产生的附加径向力在一定程度上对航行体姿态起到矫正作用,仿真计算结果与模型试验结果符合较好。

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